False error message?

[massimo ceraolo]

I suppose a program user should take seriously error and warning messages to avoid bigger issues.
Therefore I suppose any false error message should be corrected.

Currently OMEdit shows a strange message whenever we duplicate a model in a package.
The issue can be replicated considering the attached Test.mo.
If we duplicate RL1 giving for instance to the duplicated class the name RL2, I receive the following error message:

[1] 21:07:52 Syntax Error
[: 1:0-1:0]: No viable alternative near token: /

[2] 21:07:52 Translation Error
[: 0:0-0:0]: Internal error Failed to scan top of input: EOF

Expected one of: <EOF>
Current parse tree is: The parser stack is:

makeNode
stored_definition

That message was received on a Mac. On a (older version under) Windows I receive something similar:

[1] 21:18:40 Syntax Error
[: 1:0-1:0]: No viable alternative near token: C

[2] 21:18:40 Translation Error
[: 0:0-0:0]: Internal error Failed to scan top of input: EOF

Expected one of: <EOF>
Current parse tree is: The parser stack is:

It seems to me that no error occurred while duplication. So, probably this error message is just wrong